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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 12
Beko
14212
Tuning drifts
C458 100nF sm near tuner or C460 breaking down (in parallel with C457 - not shown on diag) 0µ47 63v
14-09-04
Crown
CRP14/21
Dead R599 2k 5w o/c
Caused by line dr trfmr CROW602300033051 & replace line dr Tr
14-09-04
Sharp
C1421
Dead with no st/by relay energising
No volts reset pin 11 of micro IC1002; D607 zener s/c
14-09-04
Sharp
C1421
Fback lines
HT to RGB only 72v (180v) - C620 4µ7 250v & R620 22R
14-09-04
Sharp
C1421
Sound low
L301 in if unit
14-09-04
Sharp
C1421
St/by only - comes on briefly at sw on
OK on 110v ac mains - STR40090 faulty
14-09-04
Sharp
C1421 7PS
LINE JITTER
R308 820k
14-09-04
Sharp
C1421 7PS
LOW SOUND , ACTION OF VOL CONTROL ALTERS , ABOVE HA
CHECK L301 - IF UNIT
14-09-04
Sharp
C1421 7PS
Set dead StBy relay not enigised
Check pin 11 IC1002 for reset V & D607
14-09-04
Sharp
C1421 7PS
Stuck in standby.
RY701 RELAY WINDING OC
14-09-04
Sharp
C1421 7PS
Stuck in StBy EHT comes up then goes into StBy
STR40090 u/s
14-09-04
Sharp
C1421H
St/by only
RY701 relay o/c winding
14-09-04
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